42. Mica capacitors are characterised by all of the following except

stable operation
accurate value
low leakage reactance
low losses

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288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
href="https://exam.pscnotes.com/mcq/mica-capacitors-are-characterised-by-all-of-the-following-except/#more-45818">Detailed SolutionMica capacitors are characterised by all of the following except

43. In a cable capacitor, voltage gradient is maximum at the surface of the

earth
conduction
sheath
insulator

Detailed

SolutionIn a cable capacitor, voltage gradient is maximum at the surface of the

44. The unit of capacitance is

henry
ohm
farad
farad/m

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11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
class="read-more button" href="https://exam.pscnotes.com/mcq/the-unit-of-capacitance-is/#more-45137">Detailed SolutionThe unit of capacitance is

45. The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to . . . . . . . . percent of its . . . . . . . . value.

37, initial
62, initial
62, final
37, final

Detailed SolutionThe time constant of an R-C circuit is defined as the time during which capacitor charging voltage

actually rises to . . . . . . . . percent of its . . . . . . . . value.

46. An electrolytic capacitor is generally made to provide

low capacitance
fixed capacitance
variable capacitance
large value of capacitance

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11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube button" href="https://exam.pscnotes.com/mcq/an-electrolytic-capacitor-is-generally-made-to-provide/#more-44789">Detailed SolutionAn electrolytic capacitor is generally made to provide

47. Which of the following capacitors preferred for high frequency circuits ?

Air capacitor
Electrolytic capacitor
Mica capacitor
none of the above

Detailed Solution

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class="screen-reader-text">Which of the following capacitors preferred for high frequency circuits ?

48. If three 15 uF capacitors are connected in series, the net capacitance is

5 uF
30 uF
45 uF
50 uF

Detailed SolutionIf

11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube

three 15 uF capacitors are connected in series, the net capacitance is

49. Out of the following capacitors of identical rating which one will have the smallest dimensions ?

Aluminium foil capacitor
Mica capacitor
Ceramic capacitor
Paper capacitor

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dimensions ?" class="read-more button" href="https://exam.pscnotes.com/mcq/out-of-the-following-capacitors-of-identical-rating-which-one-will-have-the-smallest-dimensions/#more-43959">Detailed SolutionOut of the following capacitors of identical rating which one will have the smallest dimensions ?

50. If the sheet of a bakelite is inserted between the plates of an air capacitor, the capacitance will

decrease
increase
remains unchanged
become zero

Detailed SolutionIf the sheet of a

bakelite is inserted between the plates of an air capacitor, the capacitance will


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